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09.08.2023
GMAT Work Speed Time
1.
Tamin started his journey from home to the office at a constant speed of
60 kmph. While returning, he covered half of the journey at 80 kmph
and the other half at 40 kmph. If he takes 36 minutes more than the time
taken for the first journey, find the distance between his home and the
office.
A)
275km B)288km C)300km D)318km E)330km
2.
The speeds of the two trains are 72 kmph and 108 kmph. When both
trains run in opposite directions, it takes 12 seconds to cross each other.
If the faster train takes 10 seconds to cross a pole, what is the length of
the slower train?
A)
220 B)250 C)280 D)300 E)350
3.
A can complete a job in 8 days. If A is 50% more efficient than B, find
the number of days they will take together to finish the job.
A)
16/5 days B)18/5 days C)20/5 days D)24/5days E)28/5 days
4.
A, B, and C can finish a project in 6, 8, and 10 hours, respectively. If all
of them work together to complete the same project, how much time will
it take to complete the project? (hours=hs)
A)60/47 hs B)80/47hs C)90/47 hs D)100/47hs E)120/47hs
5.
Siddharth started his journey from Chennai to Bangalore, and at the
same time, Bala began to travel from Bangalore to Chennai. The
distance between Chennai and Bangalore is 240 km, and Bala's speed is
three times that of Siddharth's. If they meet at point A, what is the
distance from Bangalore to A?
A)60 km B)100km C)120km D)140km E)180km
GMAT EXPONENTS
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GMAT INEQUALITY
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16-20
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25-30.
31.
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